Clamp



Aug., s, 1929.

i3. @LMP Filed FRE@ 27, 192,8

' pipe.

, having a vided with yan opening 12C.

A tightening screw 13 ,and nut 14 are pro- Patented Aug. 6, 1929.

UNITED STATES BENJAMIN A. TETZLAFF, OF BERWYN, ILLINOIS.

CLAMP.

Application filed February 27, 192s.

This invention relates generally to certain new and useful improvements in clamps adapted for use in connection with tubular or cylindrical bodies, and more particularly adapted for' securing together two of such bodies, as for example, securing a hose to a The invention is also adaptable for use as a ground connection clamp for electric circuits, such as radio and the like.

It is an object. of my invention to provide a clamp which ,shall be simple in construction and low in cost of manufacture and which shall readily be adjustable for use on cylindrical or tubular members of varying diameters.

Another object of my invention is to pro vide a clamp which by virtue of its adjustay bility will obviatethe necessity of a retailer carrying a stock of clamps of varying diameters or sizes.

With the above and other objects in view, my invention consists in the novel combination, construction and arrangement of the parts and members shown in the preferred embodiment in the attached drawings, de-

scribed inthe following specications and particularly pointed out in the appended claims.

Referring to the illustrations, Fig. 1, is a side elevation of my improved clamp as applied to securing together a pair of cylindri cal members.

Fig. 2, is an end elevation of the clamp.

Fig. 3, is a perspective view of a connection employed at one end'of the clamp for support-ing a screw or bolt.

Fig. 4;, is a developed view of the clamp band.

Fig. 5, is a perspective view of a screw and nut for tightening the clamp.

Referring to the illustrations in'detail, 1() indicates ay strip of iiexible metallic material plurality of openings 10A in one end thereo A separate connection 12 is provided having a slight arcuate formation lengthwise thereof. The connection 12 is formed with a transverse slot 12A and with an upstanding lug 12B punched out of the body thereof, as clearly shown in Fig. 3. The lug 12B is provided 'for tightening of the clamp.v

To secure the clamp'into operative posi- Serial No. 257,120.

tion, the unperforated end 10B of the strip 10, is passed through the slot 1 2A of the connection 12 and the end 10B is then folded over to lie on the inner face of the circular band; the fold occuring at a point to allow suticient length at the other end of the band for a right-angularly bent Wall 10C against which the nut 14 may be held while the screw or bolt 13 is passed through the opening 12C in the lug 12B and thence through one of the openings 10A which registers with the open'- ing 12C and thence into the nut 14. The threading of the screw or bolt 13 into the nut 14 will draw theconnection 12 and end wall 10C together to thus tighten the clamp around the cylindrical members 15 and 16.

I claim 1. An adjustable clamp comprising a band of flexible material, a separate connection having a perforated lug and a cross slot`,lsa-id lug being formed integrally with said connection and being formed from an intermediate portion of the body of such connection, one end of said material being passed through said cross slot and bent over itself and the other end of said material having an opening therein and being bent between said opening and its other end to form an angularly disposed wall, a nut held against said wall, and a tightening screw or bolt eX- tending through said perforated lug and through said wall openinginto said nut, whereby the clamp may be securely tightened.

2. An adjustable clamp comprising a band of iexible material, a separate connection having a perforated integral lug and a cross slot. said lug being formed from an intermediate portion of the body of such connection, one end of said material being passed through said cross slot and bent over itself and the other end of said material having an opening therein and being bent between said opening and 1its other end to form an angularly disposed wall, a nut held against said wall, and a tightening screw or bolt exi tendin through said perforated integral lug an through said wall opening into said nut, whereby the clamp may be ysecurely tightened.

3. An adjustable clamp comprising a band ofilexible material, a separate connection having a perforated integral ing anda cross slot, said lug being formed from an intermediate portion of the body of such connecagainst said Wall, and a tightening screw or tion, one end of said material being passed ooit amending through said perforated inthrough said cross slot. and bent over itseii' tegrzll lug and through said mili opening 10 and the other end of said material having a into said nut, whereby the clump may he se- 5 plurality of openings therein and being bent eurely tightened.

between said opening and its other end to ln witness whereof l aix my signature. form an anguiarly disposed Wall, a nut held BENJAMIN A. TETZLAFF. 

